e95b093483
* ethereum-types refactor in progress * ethereum-types refactor in progress * ethereum-types refactor in progress * ethereum-types refactor in progress * ethereum-types refactor finished * removed obsolete util/src/lib.rs * removed commented out code
78 lines
1.9 KiB
Rust
78 lines
1.9 KiB
Rust
// Copyright 2015-2017 Parity Technologies (UK) Ltd.
|
|
// This file is part of Parity.
|
|
|
|
// Parity is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU General Public License as published by
|
|
// the Free Software Foundation, either version 3 of the License, or
|
|
// (at your option) any later version.
|
|
|
|
// Parity is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU General Public License for more details.
|
|
|
|
// You should have received a copy of the GNU General Public License
|
|
// along with Parity. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
//! General error types for use in ethcore.
|
|
|
|
#![allow(missing_docs)]
|
|
#![allow(unknown_lints)]
|
|
|
|
#[macro_use]
|
|
extern crate error_chain;
|
|
|
|
extern crate ethereum_types;
|
|
extern crate rlp;
|
|
extern crate rustc_hex;
|
|
extern crate kvdb;
|
|
|
|
use std::fmt;
|
|
use rustc_hex::FromHexError;
|
|
use rlp::DecoderError;
|
|
use ethereum_types::H256;
|
|
|
|
#[derive(Debug)]
|
|
/// Error in database subsystem.
|
|
pub enum BaseDataError {
|
|
/// An entry was removed more times than inserted.
|
|
NegativelyReferencedHash(H256),
|
|
/// A committed value was inserted more than once.
|
|
AlreadyExists(H256),
|
|
}
|
|
|
|
impl fmt::Display for BaseDataError {
|
|
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
|
|
match *self {
|
|
BaseDataError::NegativelyReferencedHash(hash) =>
|
|
write!(f, "Entry {} removed from database more times than it was added.", hash),
|
|
BaseDataError::AlreadyExists(hash) =>
|
|
write!(f, "Committed key already exists in database: {}", hash),
|
|
}
|
|
}
|
|
}
|
|
|
|
impl std::error::Error for BaseDataError {
|
|
fn description(&self) -> &str {
|
|
"Error in database subsystem"
|
|
}
|
|
}
|
|
|
|
error_chain! {
|
|
types {
|
|
UtilError, ErrorKind, ResultExt, Result;
|
|
}
|
|
|
|
links {
|
|
Db(kvdb::Error, kvdb::ErrorKind);
|
|
}
|
|
|
|
foreign_links {
|
|
Io(::std::io::Error);
|
|
FromHex(FromHexError);
|
|
Decoder(DecoderError);
|
|
BaseData(BaseDataError);
|
|
}
|
|
}
|
|
|